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View Full Version : How to make Borla exhaust sound better?


somesnapper
03-31-2009, 11:21 AM
I have a CAI and Borla Exhaust on a E36 M.

I'm not happy with the sound of the Borla.

It has too much "hum" and not enough gurgle, pop, or rawness.

What other mods can I do which will contribute to better sound?

I believe I only have the muffler..and not the full exhaust.
ducky328i
03-31-2009, 11:24 AM
i love my borla....if i need a fix for that raw sound, i just drop my cat-back for a few days...
Pjoerunner
03-31-2009, 11:49 AM
I love the "humm" instead of the "gurgle". My factory exhaust "gurgle's" too much for my taste. Lets trade :buttrock
KUSA325is
03-31-2009, 04:55 PM
get a track pipe to eliminate your cats, or buy a UUC.
M3Alpine99
03-31-2009, 06:44 PM
You need System U or B&B Tri-Flo.

You can't 'make' your Borla change sounds... minus drilling holes in it or something overly drastic.
FLYINV
03-31-2009, 07:14 PM
Can he remove the resonators or do high flow cats, headers?
M3Alpine99
03-31-2009, 07:15 PM
You could but it is not going to change the natural tone to the car.
freakgeek
03-31-2009, 07:47 PM
Exchange it for an M3 exhaust
Mateen9
03-31-2009, 08:03 PM
http://www.youtube.com/watch?v=kuY9ZJ2Am70&feature=channel_page

like this?
Asylumscenery
03-31-2009, 09:37 PM
Get high flow cats, Gut them(if you want to fight emissions), or get a track pipe. However, you still don't have the ideal muffler for that sound. It makes more sense, if you want a good sound, to get a muffler from companies like stromung or uuc that were designed specifically for your car rather then made by a big exhaust company that just cut and re-wielded a standard "sport" muffler to fit a bolt pattern.



..if i need a fix for that raw sound, i just drop my cat-back for a few days...

That works everytime, but like you said only for a few days.
WV Jim
04-01-2009, 07:26 AM
Be sure and send this link to the guy that said a Borla will "scare small children."
Boondoggie
04-01-2009, 10:12 AM
How old is the borla?

It will get louder, poppier, and raspier as it ages.
mikese36m
04-01-2009, 10:19 AM
My borla must be older than me then LOL mine is raspier and poppier than i like but i have Straight pipes going to it no cats or resinators.
BigBlock400
04-01-2009, 11:13 AM
to fix it you buy a B&B tri-flow exhaust ;) i have one on mine, it pops, gurgles, and humms. its loud when you want it to be loud but isnt annoying to drive every day. every time i downshift or let off the throttle it pops and crackles a lot. i love it.
SS Ball3r
04-01-2009, 11:24 AM
you should have gone with magnaflow...
sar5036
04-01-2009, 12:36 PM
easiest way i can think of making borla sound better is to trade it for stromung
somesnapper
04-01-2009, 12:51 PM
http://www.youtube.com/watch?v=kuY9ZJ2Am70&feature=channel_page

like this?

Now we're talking!!
Asylumscenery
04-01-2009, 08:28 PM
easiest way i can think of making borla sound better is to trade it for stromung


+1,


you should have gone with magnaflow...

magnaflow ftl
SS Ball3r
04-01-2009, 10:34 PM
are you serious? magnaflow sounds so nice on these engines.
somesnapper
04-02-2009, 03:35 PM
Now we're talking!!

Which exhaust is this?

Where can i pick up a stromung

How can I tell if my borla has a resonator (or two?)

Blah the Stromung soundclips dont sound any better than my Borla.